Pumping apparatus for deep wells



N0. 6|8,623. Patenfed lan. 3|, |899. W. A. SPRINGER.

PUMPING APPARATUS FUR DEEP WELLS.

(Appncfition med Apr. 16, 1898,.

(No Model.)

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UNITED STATES PATENT GFEICE.

IVILLIAM A. SPRINGER, OF STURGEON, PENNSYLVANIA.

PUIVIPING APPARATUS FOR DEEP WELLS.

SPECIFICATION forming part of Letters Patent No. 618,623, dated January31, 1899.

Application tiled April 16, 1898.

To @ZZ whom it may concern: f

Be it known that I, WILLIAM A. SPRINGER, a citizen of the United Statesof America, residing at Sturgeon, in the county of Allegheny and Stateof Pennsylvania, have invented certain new and useful Improvements inPumping Apparatus for Deep lfVells and I do hereby declare the followingto be a full, clear, and exact description thereof, reference being hadto the accompanying drawings, which form a part of this specification.

My invention relates to certain new and useful improvements in a pumpingapparatus for'deep wells.

Throughout the oil-fields muchkdifliculty has been experienced with thepumping devices, and particularly with that class of pumps in which ahollow reciprocating pistonvalve is used, for the reason that in wellsof small bore it is difficult to' provide a reciprocating valve ofsufficient strength to withstand the necessary strain to which they aresubject, and the result is that. the valve becomes broken and out oforder and is difficult to remove. Other disadvantages arise from pumpingdevices of this class, and with a view of providing a device that willovercome these difficulties I have constructed a form of pump which Ishall presently describe in detail and afterward its operation.

With the above objects in view the invention finally consists in thenovel construction,

combination, and arrangements of parts, as-

will be referred to by reference-gures in the accompanying drawings, inwhich- Figure l is a vertical side View of my improved pumping deviceas4 it would appear arranged within the bottom of the well. Fig. 2 is avertical side view of the same in section, showing its interior workingparts. Fig. 3 is a plan sectional view through the same on the line A Bof Fig. 2. Fig. 4 is also a plan sectional View through the same uponthe line C D.

Referring now to the drawings for the detail parts, thereference-numeral 1 designates a tube fitted into the Well and extendingfrom the ground surface to the bottom of the well. This tube within itslower end is provided with a suitable seat 2, upon which the pumpingdevice rests. The pumping-barrel 3,

which is usually about five or siX feet long,

Serial No. 677.876. (No model.)

is attached to the upper end of the pumping device and is provided atits upper end with the head 4, through which the pump-rod 5 operates.' Asolid piston 6, provided with packing-rings 7, is arranged toreciprocate within the pump-barrel and may be of any suitable structure.

The pumping device consists of the parts or sections 8, 9, 10, 1l, and12, each of which is provided with threaded portions for connecting toone another, the section 8 being in the form of a hollow strainer-cupwith perforations 13 extending through its sides and up through the nutportion 8. Located above the strainer-cup and upon the portion 9 whichconnects thereto are the leather cups 14 and metal cup 15. These leathercups are somewhat larger in diameter than the body of the pump and ttightly against the interior walls of the tube 1. A chamber 10, leadingupwardly from the interior of the strainercup, is formed within theportion 9 and is provided at its upper end with a valve-seat for thesustaining-valve 17. An enlarged chamber 18 is formed above the' valvewithin the part 10, and above this chamber is formed a smaller chamber19,within which are arranged the stop-bars 19', which are adapted toprevent the valve from rising too far. Vithin the section-piece 1l isformed the chamber 20, which has the two ports 2l and 2l leadingtherefrom u p to the interior of the hollow section or thimble 12, whichextends up into the interior of the pump-barrel and is provided with theperforations or openings 23. A subchamber 24, communicating with theaforesaid chamber 20, has screwed therein the hollow plug 25. This plugis provided with a valve-seat at itstop for the discharge-valve 26, andwithin the walls of this'chamber are formed the discharge-ports 27 and27', which lead out to the interior of the tube 1.

The device when put together, as shown, is forced down into the welluntil seated upon the seat 2 at the bottom of the well, as shown IOO and20, up through ports 21 and 2l', and through perforat-ions 23 of thethimble 22 and out into the working barrel. Upon the downward ordischarge stroke of the piston the oil is forced out of the pump-barreldown the ports 2l and 2l into the chamber 20, up through the hollow plug25, raising dischargevalve 2G into subchamber 24, and out of thedischarge-ports 27 and 27 into the tube 1. As the pumping proceeds theoil rises in the tube to the top of the well.

The pumping device may be operated without the use of the thimble 22;butIprefer to use the thimble or other suitable perforated device forthe reason that should any of the rings become detached or broken inparts from the piston it prevents such parts from interfering with thevalves.

W'ith other forms of pumping devices, in which the sustaining-valve isscrewed to the tubing at the bottom of the well, it is necessary towithdraw the tubing to unscrew the valve, should it become broken or outof order, and the withdrawing of this tubing entails considerableexpense and labor; but with my improved device I am enabled to withdrawthe whole pumping apparatus by simply pulling up the pump-rod, as allworking parts are connected together with the pump-barrel, and by theuse of a solid piston with stationary valves I am able to pump wells ofsmall bore without danger of the working valves being broken ordisarranged.

Having thus fully shown and described my improved device, what I claimas new, and desire to secure by Letters Patent, is

l. In a pumping apparatus for deep wells, the combination with apump-barrel having a solid reciprocating piston operatin g therein, anda stationary lifting and discharge valve mechanism connected at the endthereof, ot' the ports or passages 2l and 21' leading upwardly from theinterior chambers between the valves and terminating in a perforatedpassage or thimble within the pump-barrel below the piston,substantially as shown and set forth.

2. In a pumping apparatus for deep wells, the combination with thepump-barrel having a solid reciprocating piston operating therein, and astationary lifting and discharge valve mechanism connected at the basethereof, of the ports 2l and 2l leading upwardly from ranged at the baseof the sustaining-valve chamber,substantially as shown and set forth.

3. In a pumping apparatus for deep wells, the combination with thepump-barrel having a solid reciprocating piston operating therein, and astationary lifting and sustaining Valve mechanism connected at the basethereof, of the ports 21 and 2l leading upwardly from the interiorchambers between the valves and terminating in a perforated passage orthimble within the pump-barrel below the said piston, a perforatedstrainer arranged at the base of the inlet to the sustaining-valvechamber, and the outlet or discharge ports 27 and 27 leading from theinterior of the dischargevalve chamber to the annular space between thewalls of the said valve mechanism and the well-tubing, substantially asshown and set forth.

4. In combination with the well-tubin g and the pump-barrel having asolid reciprocating piston operating therein, of a combined stationarysustaining and discharge valve mech` anism consisting of the connectedports 8, 9, IO and l1 having interior chambers and valves as shown, theports 21 and 2l leading from the chambers between the valves andterminating in a perforated thimble at the top with in the pump-barreland the discharge-ports 27 and 27 leading from the discharge-Valvechamber to the annular space between the said valve mechanism and thewell-tubing, all combined and arranged to operate as shown and setforth.

5. In a pumping apparatus for deep wells, the combination with astationary sustaining and discharge valve and a pump-barrel with solidmovable piston, of a perforated passage or thimble arranged between thedischarge- Valve and the piston substantially as and for the purpose setforth.

In testimony whereof I have hereunto af fixed my signature in thepresence of two subscribing witnesses.

WILLIAM A. SPRINGER.

Witnesses:

L. I1. MCCABE, EMMET BARR.

IOO

